<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	
	<script>
		var num=123456;
		typeof(num);
		console.log(num);
		console.log(typeof(num));

		var str='hello';
		console.log(str);

		var apple;

		apple=null;
		console.log(apple);
		console.log(typeof(apple));

		apple={
			type:"红富士",
			size:"大"
		};

		console.log(apple);
		console.log(typeof(apple));

		var stu={
			name:'xlw',
			sex:'男',
			score:{
				English:90,
				math:99,
				chinese:80
			}
		}

		console.log(stu);
		console.log(typeof(stu));

	</script>
</body>
</html>